Great Time Management Tool: This plastic sand timer can help your kids do things more efficiently and develop a strong sense of time and they also can practice for cooking or a game timer,and exercising timer(yoga or psychological training). Beneficial Tool for Children: The cute hour glass widely used on kids teeth brushing, washing hand, having breakfast, time outs, reading, watching, writing, painting, homework, promise of games to be played. Acrylic Shock- Resistance Hourglass Timers:The sand timers are made of Acrylic, which will not be broken, suitable for kids. With high borosilicate glass inside and a protective cover on top, the plastic sand timer kids is very durable to use.